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<div>Hi,</div>
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<div>I participate on developing some frequency-analysis software tool (Java) for about ten years now:</div>
<div><font face="Calibri"><a href="http://www.irt.de/en/activities/programme-distribution/frequency-planning-software.html"><font face="Arial" color="#0563C1"><u>http://www.irt.de/en/activities/programme-distribution/frequency-planning-software.html</u></font></a><font face="Arial">
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<div><font face="Calibri"> </font></div>
<div>We have a lot of legacy code on board, but we also try to introduce advanced technologies. </div>
<div>We switched to Java8 already and started using JavaFX instead of Swing, since it is (still) a desktop application….</div>
<div><font face="Calibri"> </font></div>
<div>I observe the development of Geotk and SIS since a year, and the transition to SIS has many ideas in common with our current approach.</div>
<div>So my first try was to use the referencing module to replace our internal coordinate transformations.</div>
<div>Our current implementation depends on a very old geotoolkit version I want to get rid of.</div>
<div><font face="Calibri"> </font></div>
<div>Since we use only a small set of CRs (about 5-6) those are hardcoded and I don’t like to involve the full EPSG database.</div>
<div>Unfortunately I did not get the datum shift working. </div>
<div><font face="Calibri"> </font></div>
<div>I tracked it down to where the transformation matrices are build and ended up here:</div>
<div><font face="Calibri"> </font></div>
<div><font face="Calibri"><a href="https://github.com/Geomatys/geotoolkit/blob/master/modules/referencing/geotk-referencing/src/main/java/org/geotoolkit/referencing/operation/DefaultCoordinateOperationFactory.java#L1080"><font face="Arial" color="#0563C1"><u>https://github.com/Geomatys/geotoolkit/blob/master/modules/referencing/geotk-referencing/src/main/java/org/geotoolkit/referencing/operation/DefaultCoordinateOperationFactory.java#L1080</u></font></a></font></div>
<div><font face="Calibri"> </font></div>
<div>which performs the concatenation but finally does not use the result matrix returned <font face="Wingdings">L</font></div>
<div><font face="Calibri"> </font></div>
<div>I even found a unit test for this:</div>
<div><font face="Calibri"> </font></div>
<div><font face="Calibri"><a href="https://github.com/Geomatys/geotoolkit/blob/master/modules/referencing/geotk-referencing/src/test/java/org/geotoolkit/referencing/operation/COFactoryUsingMolodenskyTest.java#L451"><font face="Arial" color="#0563C1"><u>https://github.com/Geomatys/geotoolkit/blob/master/modules/referencing/geotk-referencing/src/test/java/org/geotoolkit/referencing/operation/COFactoryUsingMolodenskyTest.java#L451</u></font></a><font face="Arial">
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<div><font face="Calibri"> </font></div>
<div>but unfortunately it is @Ignored.</div>
<div> </div>
<div>Do I miss something?</div>
<div><font face="Calibri"> </font></div>
<div>Dieter.</div>
<div><font face="Calibri"> </font></div>
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